ornithopter(redirected from Ornithopters)
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A machine shaped like an aircraft that is held aloft and propelled by wing movements.
(Aeronautics) a heavier-than-air craft sustained in and propelled through the air by flapping wings. Also called: orthopter
or•ni•thop•ter(ˌɔr nəˈθɒp tər)
a heavier-than-air craft designed to be propelled through the air by flapping wings.